2020 BMW M2 Competition vs. 2019 Porsche 911

Detailed Review, Specifications & Comparison

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The M2 Competition’s lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The 911 doesn’t offer a lane departure warning system.

The M2 Competition’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The 911 doesn’t offer a driver alert monitor.

Both the M2 Competition and the 911 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.


BMW pays for scheduled maintenance on the M2 Competition for 2 years and 26000 miles longer than Porsche pays for maintenance for the 911 (3/36,000 vs. 1/10,000).

There are over 82 percent more BMW dealers than there are Porsche dealers, which makes it much easier should you ever need service under the M2 Competition’s warranty.


To reliably power the ignition and other systems and to recharge the battery, the M2 Competition has a 209-amp alternator. The 911’s standard 204-amp alternator isn’t as powerful.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Porsche vehicles. Consumer Reports ranks BMW 3 places higher in reliability than Porsche.


The M2 Competition’s 3.0 turbo 6 cyl. produces 35 more horsepower (405 vs. 370) and 75 lbs.-ft. more torque (406 vs. 331) than the 911’s standard 3.0 turbo 6 cyl. The M2 Competition’s 3.0 turbo 6 cyl. produces 38 lbs.-ft. more torque (406 vs. 368) than the 911 S’ standard 3.0 turbo 6 cyl. The M2 Competition’s 3.0 turbo 6 cyl. produces 1 lbs.-ft. more torque (406 vs. 405) than the 911 GTS’ standard 3.0 turbo 6 cyl.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW M2 Competition higher (3 out of 10) than the Porsche 911 (1). This means the M2 Competition produces up to 22.5 pounds less smog-producing pollutants than the 911 every 15,000 miles.


To help the driver achieve optimum performance and fuel economy, the M2 Competition has a standard up-shift light to indicate when to shift based on power needs and conditions. The 911 doesn’t offer an up-shift light.

Brakes and Stopping

For better stopping power the M2 Competition’s standard brake rotors are larger than those on the 911:

M2 Competition


Front Rotors

15.7 inches

13 inches

Rear Rotors

15 inches

13 inches

Tires and Wheels

For better traction, the M2 Competition has larger front tires than the 911 (245/35R19 vs. 235/40R19).

The M2 Competition’s tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the 911’s standard 40 series front tires.

Suspension and Handling

For a smoother ride and more stable handling, the M2 Competition’s wheelbase is 9.5 inches longer than on the 911 (106 inches vs. 96.5 inches).

For better handling and stability, the track (width between the wheels) on the M2 Competition is 1.1 inches wider in the front and 1.8 inches wider in the rear than the average track on the 911.

The M2 Competition’s front to rear weight distribution is more even (48.1% to 51.9%) than the 911’s (40.1% to 59.9%). This gives the M2 Competition more stable handling and braking.

Passenger Space

Because it has more passenger and cargo room, the EPA rates the M2 Competition a Compact car, while the 911 Coupe is rated a Minicompact.

The M2 Competition has 19.7 cubic feet more passenger volume than the 911 Coupe (89.7 vs. 70).

The M2 Competition Coupe has 2.1 inches more front headroom, 3.6 inches more front shoulder room, 5.5 inches more rear headroom, 8 inches more rear legroom and 5.1 inches more rear shoulder room than the 911 Coupe.

Cargo Capacity

The M2 Competition Coupe has a much larger trunk than the 911 Coupe with its rear seat up (13.8 vs. 5.1 cubic feet). The M2 Competition has a much larger trunk with its rear seat folded than the 911 Coupe with its rear seat folded (13.8 vs. 9.1 cubic feet).

With its coupe body style, valet key, locking rear seatbacks and remote trunk release lockout, the M2 Competition offers cargo security. The 911’s non-lockable folding seat and non-lockable remote release defeat cargo security.


If the windows are left open on the M2 Competition the driver can close them all at the outside door handle. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the 911 can only operate the windows from inside the vehicle, with the ignition on.

Comfort Access standard on the M2 Competition allows you to unlock the driver’s door, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the vehicle in bad weather or making a hurried start to your trip. The Porsche 911’s available Porsche Entry and Drive doesn’t unlock the trunk.

For greater rear passenger comfort, the M2 Competition has standard rear a/c vents to keep rear occupants more comfortable. The 911 doesn’t offer rear vents.


The M2 Competition was chosen as one of Car and Driver’s “Top Ten” for 2 of the last 3 years. The 911 has never been a Car and Driver “Top Ten” pick.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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